Android HVAC/R field tool
ChargeRight
Offline superheat and subcooling calculator with PASS, ADD CHARGE, and RECOVER charge verdicts.
Built for the rooftop moment
- Actual superheat and subcooling from bundled PT charts.
- Target superheat for fixed-orifice systems.
- Target subcooling for TXV and EXV systems.
- R-410A and R-22 free, with all 10 refrigerants in Pro.
- Saved charge history, presets, and Pro PDF reports.
Use field judgment
ChargeRight is an estimate for reference only. Always verify against the equipment OEM charging chart and current manufacturer or AHJ specifications before adjusting charge.